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' 4:Y sheets-sneer 1.

' (No Model.)

D. W. SMITH.

STEAM GEEEMTOE.v

No. 399,165, Patente Mar. A88

l PQ l\ @XR-kwam@ vawtoz r N. PETERS. Pmmmmgnpaer. washingmn. D. C.

(No Model.) 4 sheets-sheen 2. D. W. SMITH.

STEAM GENERATOR.

Patente l E i 1 1 fl/Lfuawloa QL Janie? 2195271121 N. areas,Pmrmimugmpm, wnlmngxm ne (No Model.) Sheets-Sheet 3.

D. W. SMITH.

STEAM GENERATOR.

lit aln, 1889.

(No Model.) v 4 Sheets-Sheet'. 4. D. W. SMITH.

STEAM GENERATOR. No. 399,165. Zlateuted Mar. 5, 1889.

9 y If K Nv PETERS, Pmmumgnphcr. washington. D. CA

UNITED STATES PATENT rricE.

DANIEL lV. SMITH, OF ST. LOUIS, MISSOUR, ASSIGNOR OF ONE-HALF TO JOSEPH(l. ADDINGION, OF SAME PLACE.

STEAlVhGEN ERATOR.

SPECIFICATION forming; part of Letters Patent No. 399,165, dated March5, 1889.

Application filed November 26, 1887. Serial No. 256,245. (No model.)

have invented a certain new and useful iinprovenient inSteam-Goncraters, olf which the following is a full, clear, and exactdescription, reference being had to the aceompanyingl drawings, formingpart otl this spccitication, E

i haust-steam pipe through the pipe l), as indiand in which- Figure l isa side elevation of my improved 'y generator. Fig'. is a top or planview. 3 is a vertical section through the upper series of boilers orheating-tanks, this section beingl taken on line 3 3, Fig'. 2. Fig. l isa similar view of the lower series of boilers or heating-tanks, thesection being' taken on line l 4, Fig. 2. Fig. 5 is an enlarged verticalsection through one of the burners. Fig'. 6 is an enlarged detailsection of one of the automatic valves. 7 is an enlarged viewillustrating` a modiiied form of burner 'for heating the tanks. Fig'. Sis a section through the valve operating device, the section beingltaken on line 8 S, Fig. l. Fig. 9 is a vertical section through the mainsteam boiler or receiver and the boilers, taken on line 9 9, Fie'. Fig'.l0 is a horizontal sect-ion through the upper series ot" heating-tanks,taken on line lO lO, Fig. l. Fig. 1l is a view showing the exhaust-pipefrom the engine connected with a pump for forcing the exhaust into theboiler.

My invention relates to certain improve ments in steam-generators; andmy invention consists in features of novelty, hereinafter fullydescribed, and pointed out in the claims.

Referring to the drawings, A represents a steam drum or receiver, withwhich communicates a main steam-pipe, A', leading,` to one or moreengines or motors. An exhausting'- pipe,1,i`roni the engine leads theexhauststeam to a suitable force-pump, 2, operated by anyv suitableconnection with the engine. This pump forces the exhaust into the pipe3, which has secured to it a head, B, as shown in Fig. l. lilith thishead connects a steampipe, O, a steam-pipe, D, and a number of.

smaller.steam-pipes, E. The steam-pipe C passes upward from the head Band commu nicates indirectly with a drum, F, located upon the receiverA, said drum communicatll to the boiler in g with the interior ol thereceiver by means of a short pipe, F provided with a valve, F2.

The pipe D extends vin a horizontal direction and enters a boiler, (l,as shown in Figs. l and L. This pipe is provided with a valve, D', whichwill automatically close against back-pressure, preventing' the returnof the exhaust-steam, which torccd into the boiler G by means ot thesaid pump l from the excated by arrows in Fig. 4.

The boiler G is connected at or near its bottom with a similar boiler,ll, by means of pipes Gf and. li. The pipe il is provided with anautomatic valve, G", outside the pipe lpl, and within the pipe it isprovided with a ball-valve, (li, these valves acting' to check thereturn ol water or steam from the boiler 'lhe boiler G is connected withthe boiler ll at or near its upper end by means of like pipes ll and('l, which in this caso arc also provided with the valt'es (il il?,respectively.

`The tank or boiler ll and a similar boiler, l, commun icatc with eachother at or near 'their bottoms b v a pipe, l, and at or near theirupper ends by a pipc,l`3. The pipe l" extends into the boiler ll andalso into the boiler l. \Vithin the boiler ll it provid ed with ailaring end, as shown in Fig. l, and into this ilaring' end the steamtrom the inner endv ol the pipe ll is forced, causing, as it enters, anincrease ol.' pressure in the boiler ll, which causes the steam to passthrough the pipe l2 into the boiler l. Frou-l the pipo lA2 the steam lismade to pass through a pipe, J2, which is iliade in the saine form asthe pipe I2, and whose flaring end is located with relation to the endof the pipe l2 the sainc as above described in speakingr of the flaring`end ot' the pipe I2 and the end of the pipe Il.

J is another boiler, similar to the boilers I, and G, H, connected tothe former by means oi the injector or nozzle J2, and which is'connectedat or near its lower end with the boiler I by a pipe, for the passage ofthe water, and which is connected at or near its upper end to the boilerl by the pipe J2, as above stated, and in like manner the boiler Jcommunicates with another and similar boiler, K, at top and bottom bypipes .K and K2, the

pipe K2 being formed the same as those J l and discharging into a pipe,L2, which takes steam from the boiler l( and delivers it into a boiler,L, and in like manner the boiler l( is also connected by a lower pipe,L', to the boiler L, which in turn is conn ected by similar pipes, M M2,at bottom and top, respectively, to a boiler, M, and this latter boilercommunicatcs, by means of pipes A2, with the main steam drum or receiverA, as shown in Fig. i).

Now it will be seen that by forcing the exhaust-steam into the boiler Gthe pressure in this boiler will be raised unt-il it is equal to that inthe remaining boilers of the series, and when it becomes. greater thanthis latter pressure the valves G2 will be 'forced open and steam andwater will circulate through the series of boilers until the pressure isagain balanced throughout the same. The steam and water as they passfrom boiler to boiler will take the course indicated by the featheredand featherless arrows respectively.

To heat the steam in. the various boilers just described, I form intheir lower parts heating-chambers N, within which are located burnersN. These are preferably electric burners, as shown in Fig. 5, preferablyIeach provided with two platinums to increase their capacity. N irepresents the wires of the burners. As the steam passes from one ofthese boilers to another, it is heated and superheated and the water inthe boilers is heated, generating steam, which is eventually dischargedinto the main receiver A.

The 'form of valve (flg isv illustrated in Fig'. G, being simply a ballfitting and held within the flaring end ot' the pipe G by means of acage or cross-wires il.

The receiver A is prcferztbly provided with a mud-drum, A22, vprovidedwith a blow-oit' valve, A23. The receiver is also preferably providedwith a kettle, A", having a valve, A20, which acts to collect condensedsteam and carry it through a pipe, A5, having a valve, /A21, vinto aboiler, A, which also connects with the receiver A by means of aninjector-pipe, A7, or pipe having an injector-nozzle. This boiler A isalso provided with a heatingchamber, AS, and a burner, A, and it may beconnected to a similar boiler, Al, by a pipe, A, and the boiler A1U maybe again connected by a pipe, AW, to the pipe ll', as shown at A15, Fig.l.

(lommunicating with the main steam-pipe D, by means of a pipe, l, is awater-tank, P, from which the beatiiig-tanks are supplied with watch'lllc pipe l is provided with a bntterliy-valvc, 12, having a crank orarm, P, on its outer end, (sec Fig. 8,) to which is connected a cord,l", leading' to an automatic cut-off, P5, (see Fig. 1,) with which thewires of the burners connect, as is shown, described, and claimed .in myapplication iiled herewith, Serial No. 256,243, and to that applicationreference is made fora full description of the cnt-ofi". ln thisapplication A .represents the they are supplied with water, as shown inFig. 3, and act to generate steam which enters the receiver through thedrinn F. The circulation of the steam is indicated by arrows in Fig. lO.The exhaust-steam pipe C connects with two of these boilers, it having abranch marked C4, (see Fig. 10,) and thus indirectly connects with thedrum F, as stated. One of the boilers, U3, may, by a branch, Uw, connectwith the steam-pipe A ,and this steam from these boilers maybe takendirect to the engine or other motor.

Steam may be discharged into the watertanl; P from the receiver A, toheat the water, through a pipe, V.

A pipe, XV, may connect the exhaust-steam pipe or head B with the pipel2, (see 4,) to assist in st artin the partial vacuum in the Iii-stboiler.

The pipes E llischarge exhaust-steam into the boilers to assist inheating the water.

l claim as my inventionl. AIn combination with a number of boilers and areceiver` to which the boilers vare connected, pipes connecting theboilers and having Flared ends and injector-nozzles adapted toinjecttherein arranged above the waterlevel, andburners for heating thewater in the boilers, substantially as set forth.

2. The combination, with a number of boilersV and a receiver to whichsaid boilers are connected, of pipes connecting said boilers, eachhaving a iiared mouth and an injectornozzle, and said months and nozzlesbeing arranged opposite each other andabove the ter-level within saidboilers, water-pipes oo nnecting the boilers at their lower parta-andburners for heating the water in said boilers, substantially as setforth.

In combination with a number of boilers provided with burners andareceiver to which the boilers are connected, injector-pipes connectingthe boilers near their upper parts, pipes connecting the boilers neartheir lower parts, one -of which is provided with automatic valves, andthe steam-exhaust pipes for discharging steam into the boilers,substantially as and for the purpose set forth.

Il. In combination with a number of boilers provided with burners anda-recciver to which the boilers are connected, injector-pipes connectingthe boilers together near their upper parts, pipes connecting theboilers near their lower parts, exhaust-pipe provided with an automaticvalve discharging steam into the tanks, and a water-tank provided withauto- IOO IIO

mei-io valve` and ooiineeted with the exhauststeem pipe,.substavntiallyas Shown and described.

5. In Combination with :i` number of'boilere provided with burners and:i reeeiverto which the boilers ore eomieered, injector-pipesoonneoizing the boilers neer their upper ports, pipes connecting theboilers near their lower parts, :md exhaust-steam pipe discharging steaminto the boilers and pipes, substantially as and for the purpose sonforth.

G. In combination with a. lower series of boilers provided with burnersand e receiver to which seid boilers are connected, on upper series ot'boilers connected to the receiver and provided with injector-pipes,substantially es and for the purpose set forth,

substantially es mid for the purpose set forth.

DANIEL W. SMITH. In presence ol'-- Jos. WAHLE, EDWD. S. KNIGHT.

